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README-BUILD-MAC.md

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Steps to build the MCL firmware on Mac, tested with Sonoma 14.5

  1. Download and install the Arduino Legacy IDE https://www.arduino.cc/en/software (1.8.19 tested, don't use 2.x)
  2. Download and install homebrew https://brew.sh/
  3. Install Powershell with homebrew https://formulae.brew.sh/cask/powershell
  4. Install dotnet with homebrew https://formulae.brew.sh/cask/dotnet
  5. Add avr-gcc Arduino toolchain path to PATH environment variable: 
    export PATH=$PATH:/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin
  6. Clone the MCL repository: 
    git clone https://github.com/jmamma/MCL.git
  7. Generate the compressed assets for the graphics and menu structures: 
    cd MCL/resource
pwsh ./gen-resource-mac.ps1
  8. Compile the MCL firmware: 
    cd ../avr/cores/megacommand
make
  9. The compiled firmware main.hex will be in the avr/cores/megacommand folder. The file main.hex should be something like 689174 Bytes large. Flash e.g. with avrdude (replace /dev/cu.usbmodem141201 with the correct port): 
    avrdude -C /Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -patmega2560 -cwiring -P/dev/cu.usbmodem141201 -b115200 -D -Uflash:w:./main.hex:i